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server.js
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server.js
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const express = require('express');
const path = require('path');
const { v4: uuidv4 } = require('uuid');
const app = express();
const httpServer = require("http").createServer(app);
const io = require("socket.io")(httpServer);
const { createClient } = require('redis');
const redisAdapter = require('@socket.io/redis-adapter');
const pubClient = createClient({
host: process.env.REDIS_ENDPOINT || 'localhost',
port: process.env.REDIS_PORT || 6379
});
if (process.env.REDIS_PASSWORD) {
pubClient.auth(process.env.REDIS_PASSWORD);
}
const subClient = pubClient.duplicate();
io.adapter(redisAdapter(pubClient, subClient));
app.use('/public', express.static('public'));
app.get('/:id', (req, res) => {
const fileDirectory = path.resolve(__dirname);
res.sendFile('index.html', { root: fileDirectory }, (err) => {
if (err) {
console.error(err);
throw (err);
}
res.end();
});
});
app.get('/', (req, res) => {
let host = process.env.HOST_NAME || 'abcd';
res.redirect(307, '/' + uuidv4() + '?host=' + host);
});
io.on("connection", socket => {
console.log('socket connected..', socket.id);
console.log(process.env.HOST_NAME);
socket.on('content_change', (data) => {
const room = data.documentId;
socket.to(room).emit('content_change', data.changes);
});
socket.on('register', function (data) {
const room = data.documentId;
socket.nickname = data.handle;
socket.join(room);
let members = [];
for (const clientId of io.sockets.adapter.rooms.get(room)) {
members.push({
id: clientId,
name: io.sockets.sockets.get(clientId).nickname
});
}
console.log(members);
io.in(room).emit('members', members);
socket.to(room).emit('register', { id: socket.id, name: data.handle });
});
socket.on('disconnect', function (data) {
console.log("Disconnected");
socket.broadcast.emit('user_left', { id: socket.id });
});
});
httpServer.listen(process.env.PORT || 3000);